forked from Imagelibrary/binutils-gdb
0a188386c0
This patch adds a unit test in GDBserver to test dynamically created target descriptions equal these pre-generated ones. gdb/gdbserver: 2017-09-05 Yao Qi <yao.qi@linaro.org> * linux-x86-tdesc.c: Include selftest.h. (i386_tdesc_test): New function. (initialize_low_tdesc): Call selftests::register_test. * tdesc.h: Include regdef.h. (target_desc): Override operator == and !=. gdb: 2017-09-05 Yao Qi <yao.qi@linaro.org> * regformats/regdef.h (struct reg): Override operator == and !=.
215 lines
6.5 KiB
C
215 lines
6.5 KiB
C
/* GNU/Linux/x86-64 specific target description, for the remote server
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for GDB.
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Copyright (C) 2017 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "server.h"
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#include "tdesc.h"
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#include "linux-x86-tdesc.h"
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#include "x86-xstate.h"
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#include <inttypes.h>
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#if defined __i386__ || !defined IN_PROCESS_AGENT
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#include "../features/i386/32bit-core.c"
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#include "../features/i386/32bit-linux.c"
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#include "../features/i386/32bit-sse.c"
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#include "../features/i386/32bit-avx.c"
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#include "../features/i386/32bit-avx512.c"
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#include "../features/i386/32bit-mpx.c"
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#include "../features/i386/32bit-pkeys.c"
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/* Defined in auto-generated file i386-linux.c. */
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void init_registers_i386_linux (void);
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extern const struct target_desc *tdesc_i386_linux;
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/* Defined in auto-generated file i386-mmx-linux.c. */
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void init_registers_i386_mmx_linux (void);
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extern const struct target_desc *tdesc_i386_mmx_linux;
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/* Defined in auto-generated file i386-avx-linux.c. */
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void init_registers_i386_avx_linux (void);
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extern const struct target_desc *tdesc_i386_avx_linux;
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/* Defined in auto-generated file i386-avx-mpx-linux.c. */
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void init_registers_i386_avx_mpx_linux (void);
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extern const struct target_desc *tdesc_i386_avx_mpx_linux;
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/* Defined in auto-generated file i386-avx-avx512-linux.c. */
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void init_registers_i386_avx_avx512_linux (void);
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extern const struct target_desc *tdesc_i386_avx_avx512_linux;
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/* Defined in auto-generated file i386-avx-mpx-avx512-linux.c. */
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void init_registers_i386_avx_mpx_avx512_pku_linux (void);
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extern const struct target_desc *tdesc_i386_avx_mpx_avx512_pku_linux;
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/* Defined in auto-generated file i386-mpx-linux.c. */
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void init_registers_i386_mpx_linux (void);
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extern const struct target_desc *tdesc_i386_mpx_linux;
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#endif
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static struct target_desc *i386_tdescs[X86_TDESC_LAST] = { };
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#if defined GDB_SELF_TEST && !defined IN_PROCESS_AGENT
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#include "selftest.h"
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namespace selftests {
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namespace tdesc {
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static void
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i386_tdesc_test ()
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{
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struct
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{
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unsigned int mask;
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const target_desc *tdesc;
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} tdesc_tests[] = {
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{ X86_XSTATE_X87, tdesc_i386_mmx_linux },
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{ X86_XSTATE_SSE_MASK, tdesc_i386_linux },
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{ X86_XSTATE_AVX_MASK, tdesc_i386_avx_linux },
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{ X86_XSTATE_MPX_MASK, tdesc_i386_mpx_linux },
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{ X86_XSTATE_AVX_MPX_MASK, tdesc_i386_avx_mpx_linux },
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{ X86_XSTATE_AVX_AVX512_MASK, tdesc_i386_avx_avx512_linux },
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{ X86_XSTATE_AVX_MPX_AVX512_PKU_MASK, tdesc_i386_avx_mpx_avx512_pku_linux }
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};
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for (auto &elem : tdesc_tests)
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{
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const target_desc *tdesc = i386_linux_read_description (elem.mask);
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SELF_CHECK (*tdesc == *elem.tdesc);
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}
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}
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}
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} // namespace selftests
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#endif /* GDB_SELF_TEST */
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void
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initialize_low_tdesc ()
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{
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#if defined __i386__ || !defined IN_PROCESS_AGENT
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init_registers_i386_linux ();
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init_registers_i386_mmx_linux ();
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init_registers_i386_avx_linux ();
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init_registers_i386_mpx_linux ();
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init_registers_i386_avx_mpx_linux ();
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init_registers_i386_avx_avx512_linux ();
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init_registers_i386_avx_mpx_avx512_pku_linux ();
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#if GDB_SELF_TEST && !defined IN_PROCESS_AGENT
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selftests::register_test (selftests::tdesc::i386_tdesc_test);
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#endif
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#endif
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}
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#if defined __i386__ || !defined IN_PROCESS_AGENT
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/* Return the target description according to XCR0. */
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const struct target_desc *
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i386_linux_read_description (uint64_t xcr0)
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{
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struct target_desc **tdesc = NULL;
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if (xcr0 & X86_XSTATE_PKRU)
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tdesc = &i386_tdescs[X86_TDESC_AVX_MPX_AVX512_PKU];
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else if (xcr0 & X86_XSTATE_AVX512)
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tdesc = &i386_tdescs[X86_TDESC_AVX_AVX512];
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else if ((xcr0 & X86_XSTATE_AVX_MPX_MASK) == X86_XSTATE_AVX_MPX_MASK)
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tdesc = &i386_tdescs[X86_TDESC_AVX_MPX];
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else if (xcr0 & X86_XSTATE_MPX)
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tdesc = &i386_tdescs[X86_TDESC_MPX];
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else if (xcr0 & X86_XSTATE_AVX)
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tdesc = &i386_tdescs[X86_TDESC_AVX];
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else if (xcr0 & X86_XSTATE_SSE)
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tdesc = &i386_tdescs[X86_TDESC_SSE];
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else if (xcr0 & X86_XSTATE_X87)
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tdesc = &i386_tdescs[X86_TDESC_MMX];
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if (tdesc == NULL)
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return NULL;
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if (*tdesc == NULL)
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{
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*tdesc = new target_desc ();
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long regnum = 0;
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if (xcr0 & X86_XSTATE_X87)
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regnum = create_feature_i386_32bit_core (*tdesc, regnum);
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if (xcr0 & X86_XSTATE_SSE)
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regnum = create_feature_i386_32bit_sse (*tdesc, regnum);
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regnum = create_feature_i386_32bit_linux (*tdesc, regnum);
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if (xcr0 & X86_XSTATE_AVX)
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regnum = create_feature_i386_32bit_avx (*tdesc, regnum);
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if (xcr0 & X86_XSTATE_MPX)
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regnum = create_feature_i386_32bit_mpx (*tdesc, regnum);
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if (xcr0 & X86_XSTATE_AVX512)
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regnum = create_feature_i386_32bit_avx512 (*tdesc, regnum);
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if (xcr0 & X86_XSTATE_PKRU)
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regnum = create_feature_i386_32bit_pkeys (*tdesc, regnum);
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init_target_desc (*tdesc);
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#ifndef IN_PROCESS_AGENT
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static const char *expedite_regs_i386[] = { "ebp", "esp", "eip", NULL };
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(*tdesc)->expedite_regs = expedite_regs_i386;
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if (xcr0 & X86_XSTATE_PKRU)
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(*tdesc)->xmltarget = "i386-avx-mpx-avx512-pku-linux.xml";
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else if (xcr0 & X86_XSTATE_AVX512)
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(*tdesc)->xmltarget = "i386-avx-avx512-linux.xml";
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else if ((xcr0 & X86_XSTATE_AVX_MPX_MASK) == X86_XSTATE_AVX_MPX_MASK)
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(*tdesc)->xmltarget = "i386-avx-mpx-linux.xml";
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else if (xcr0 & X86_XSTATE_MPX)
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(*tdesc)->xmltarget = "i386-mpx-linux.xml";
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else if (xcr0 & X86_XSTATE_AVX)
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(*tdesc)->xmltarget = "i386-avx-linux.xml";
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else if (xcr0 & X86_XSTATE_SSE)
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(*tdesc)->xmltarget = "i386-linux.xml";
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else if (xcr0 & X86_XSTATE_X87)
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(*tdesc)->xmltarget = "i386-mmx-linux.xml";
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else
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internal_error (__FILE__, __LINE__,
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"unknown xcr0: %" PRIu64, xcr0);
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#endif
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}
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return *tdesc;;
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}
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#endif
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#ifndef IN_PROCESS_AGENT
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int
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i386_get_ipa_tdesc_idx (const struct target_desc *tdesc)
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{
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for (int i = 0; i < X86_TDESC_LAST; i++)
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{
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if (tdesc == i386_tdescs[i])
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return i;
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}
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/* If none tdesc is found, return the one with minimum features. */
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return X86_TDESC_MMX;
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}
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#endif
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